Jason Hendriks

Calculates dates and relative dates dynamically in your posts and pages. For example:
<blockquote>
Our church’s next service is on Mar 21/15
<code>[date format="M d/Y" time="this Sunday"]</code>
</blockquote>
Add an always up-to-date copyright notice, or the date of your next monthly poker game.
See <a href="http://programmer.jasonhendriks.com/dynamic-dates/dynamic-dates-examples/" rel="nofollow ugc">examples on my website</a>. See the FAQ for instructions on use.
<h3>* What’s New for v2 *</h3>
<ul>
<li>Now supporting the local WordPress timezone, user-specified timezones, and user-specified languages!</li>
</ul>
<h4>Requirements</h4>
<ul>
<li>PHP 5.2 for user-specified timezones or PHP 5.3 with the International extension for user-specified languages.</li>
</ul>

Dynamic Dates

Calculate dates ('next Sunday') and relative dates ('December 25th two years from now') in your posts and pages.

Makoto

Have you ever posted the dates of seminars, workshops, lessons, etc. on your website or contact form and then forgot to update them or left them posted when they were full?
This plugin solves those problems and makes schedule management easier by providing a block, a shortcode, and a form tags for Contact Form 7. 
It only supports displaying dates in a list format, and is intended for people who want a simple date display rather than a complex calendar-type schedule.
The features provided by this plugin are as follows
Schedule management 
* Multiple dates can be managed using your own post type. 
* Due dates can be specified as relative days or dates. 
* Customizable date format 
* Customizable day names. 
* You can set the content to be displayed when there are no dates to display. 
* There are three options for handling dates that are expired. 
 * Do not display 
 * Strikethrough 
 * Labeling 
* There are three options for handling dates and times that are full. 
 * Do not display 
 * Strikethrough 
 * Label display
Block/Shortcode 
* Customizable color and layout in the sidebar of the block editor 
* Customize the text and background color of the date and time. 
* Customizable text and color for labels. 
* Select multiple layouts for the schedule 
* A shortcode can be customized same as a block by setting attribute values.
Form tags for Contact Form 7 
* Provides pull-down menu for selecting dates. 
* Tags can be inserted with a button from the form editor. 
* The pull-down menu will automatically hide expired or full dates. 
* The text of the first line of the pull-down menu can be set.

Hassle-Free Date List

This plugin adds a block, a shortcode, and a contactform 7 form tag that displays a list of dates. Dates that are due will automatically be hidden or  …

Dynamic Dates vs Hassle-Free Date List